Many embedded systems are complex, and it is often required that the firmware in these systems are updatable by the end-user. For economical and confidentiality reasons, it is important that these systems only accept firmware approved by the firmware producer.

This thesis work focuses on creating a security enhanced firmware update procedure that is suitable for use in embedded systems. The common elements of embedded systems are described and various candidate algorithms are compared as candidates for firmware verification. Patents are used as a base for the proposal of a security enhanced update procedure. We also use attack trees to perform a threat analysis on an update procedure.

The results are a threat analysis of a home office router and the proposal of an update procedure. The update procedure will only accept approved firmware and prevents reversion to old, vulnerable, firmware versions. The firmware verification is performed using the hash function SHA-224 and the digital signature algorithm RSA with a key length of 2048. The selection of algorithms and key lengths mitigates the threat of brute-force and cryptanalysis attacks on the verification algorithms and is believed to be secure through 2030.

The purpose of the thesis was to analyse three action films; Collateral Damage from 2002; Clear and Present Danger from 1994; and Scarface from 1983, in order to see how Colombians are represented in these movies.The action genre comprises of different stereotypes where the hero and the villain are represented in conjunction to each other. The analysis is about the way the films content and form are used to uphold the representation of Colombians, but also the villain and the hero more generally.

Critical Discourse Analysis was used, as main method, and the concepts of denotation and connotation guided the analysis. . The main conclusion is that the three movies reproduced an already established collective stereotype of Latin Americans, stereotype that includes both Colombia and Colombians.

Introduction Lately, there has been a significant increase in sustainability related issues in media, while companies increasingly are reporting on sustainability. Media has a central role in today's society, and sustainability is emerging as one of the most contemporary issues in the business industry. Studies with a combination of media and sustainability are a fruitful field for future research.

Purpose The aim of this study is to explain the relationship between medias sustainability exposure of companies and these companies' establishment and extent of a sustainability report.

Method This quantitative study is pursued through a deductive approach in which the hypotheses are formulated with a background in existing theories. A cross-sectional design is used to measure the presence and the variation of a given phenomena at a certain time. Secondary data is used as the empirical basis. The study focuses on companies listed at Nasdaq Stockholm.

Conclusion The results of this study indicate that medias' sustainability exposure of companies affects companies' establishment and extent of a sustainability report. Size, industry, profitability and number of subsidiaries are also significant factors. We have found that media is a primary factor in explaining why companies choose to report on sustainability issues. For every news story about a given company in a sustainability context – the likelihood of that company establishing a sustainability report is increased by 2,491. This study also proves that increased media exposure leads to a more extensive sustainability reporting.

In an automated manual transmission it is desired to have zero torque in the transmission when disengaging a gear. This minimizes the oscillations in the driveline which increases the comfort and makes the speed synchronization easier. The automated manual transmission system in a Scania truck, called Opticruise, uses engine torque control to achieve zero torque in the transmission.In this thesis different control strategies for engine torque control are proposed in order to minimize the oscillations in the driveline and increase the comfort during a gear shift. A model of the driveline is developed in order to evaluate the control strategies. The main focus was to develop controllers that are easy to implement and that are robust enough to be used in different driveline configurations. This means that model dependent control strategies are not considered.A control strategy with a combination of a feedback from the speed difference between the output shaft speed and the wheel speed, and a feedforward with a linear ramp, showed very good performance in both simulations and tests in trucks. The amplitude of the oscillations in the output shaft speed after neutralengagement are halved compared to the results from the existing method in Scania trucks. The new concept is also more robust against initial conditions and time delay estimations.

This study is intended to investigate the prerequisites for the principals to perform their work and whether they differ between schools. This has been investigated by studying the underlying management structure and the management instrument and how they have shaped the prerequisites for the principals. The study is based on interviews with princi- pals and a quality director from both public school and private school. The study shows that the management instruments goals, communication, mandate and decision as well as support functions, and to some extent the management structure, shapes the prerequisites for the principals. These management instrument have also been looked into more thor- oughly, in order to see how well they work to create the right conditions for the principals in the public school and private school. From the results that was obtained from this study, we could see that the management instruments don’t work optimally in order to give the right prerequisites for the principals. Mainly have the results shown that the principals in the private school have better perquisites than the principals working in the public school.

Department of Business Administration, Technology and Social Sciences, Human Work Science, Luleå univeristet.

Abrahamsson, LenaDepartment of Business Administration, Technology and Social Sciences, Human Work Science, Luleå univeristet.Björkman, TorstenDepartment of Business Administration, Technology and Social Sciences, Human Work Science, Luleå univeristet.Ellström, Per-ErikLinköping University, HELIX Vinn Excellence Centre. Linköping University, Department of Behavioural Sciences and Learning, Work and Working Life. Linköping University, Department of Behavioural Sciences and Learning, Education and Sociology. Linköping University, Faculty of Arts and Sciences.Johansson, JanDepartment of Business Administration, Technology and Social Sciences, Human Work Science, Luleå univeristet.

The purpose of this thesis is to document the development of the graphics part of an extremely pluggable game engine/lab environment for a course in advanced game programming. This thesis is one out of five, and concerns indoor, realtime computer 3D graphics. It covers state-of-the-art techniques such as GLSL - the OpenGL Shading Language - and more well known techniques such as portal based rendering.

Requirements Engineering (RE) in Agile Software Development (ASD) is a challenge thatmany face and several techniques exist when doing so. One such technique is prototyping, when a model of a product is used to gather important information in software develop-ment. To describe how much a prototype resembles the product the notion of fidelity is used. The aim of this study is to contribute to research regarding prototyping in ASD,and to examine the effect of a prototype’s fidelity when using prototypes in discussionsduring RE. A case study is performed at the company Exsitec where staff are interviewedregarding prototyping in software development. Thereafter, two prototypes of low andhigh fidelity are developed and used in interviews as a basis for discussion. Based on thisstudy, the use of prototypes in software projects can help customers trust the process,improve communication with customers, and facilitate when trying to reach consensusamong different stakeholders. Furthermore, depending on how they are used, prototypescan contribute to understanding the big picture of the requirements and can also serve asdocumentation. The study also shows some, albeit subtle, differences in the informationcollected using prototypes with low and high fidelity. The use of a high fidelity prototypeseems to generate more requirements, but makes interviewees less likely to come up withlarger, more comprehensive requirement changes.

To develop anaerobic digestion (AD), innovative solutions to increase methane yields in existing AD processes are needed. In particular, the adoption of low energy pre-treatments to enhance biomass biodegradability is needed to provide efficient digestion processes increasing profitability. To obtain these features, hydrodynamic cavitation has been evaluated as an innovative solutions for AD of waste activated sludge (WAS), food waste (FW), macro algae and grass, in comparison with steam explosion (high energy pre-treatment). The effect of these two pre-treatments on the substrates, e.g. particle size distribution, soluble chemical oxygen demand (sCOD), biochemical methane potential (BMP) and biodegradability rate, have been evaluated. After two minutes of hydrodynamic cavitation (8 bar), the mean fine particle size decreased from 489- 1344 nm to 277- 381 nm (≤77% reduction) depending of the biomasses. Similar impacts were observed after ten minutes of steam explosion (210 °C, 30 bar) with a reduction in particle size between 40% and 70% for all the substrates treated. In terms of BMP value, hydrodynamic cavitation caused significant increment only within the A. nodosum showing a post treatment increment of 44% compared to the untreated value, while similar values were obtained before and after treatment within the other tested substrates. In contrast, steam explosion allowed an increment for all treated samples, A. nodosum (+86%), grass (14%) and S. latissima (4%). However, greater impacts where observed with hydrodynamic cavitation than steam explosion when comparing the kinetic constant K. Overall, hydrodynamic cavitation appeared an efficient pre-treatment for AD capable to compete with the traditional steam explosion in terms om kinetics and providing a more efficient energy balance (+14%) as well as methane yield for A. nodosum.

A trend seen on the web today is to create a platform where externally developed applications can run inside some kind of main application. This is often done by providing an API to access data and business logic of your service and a sandbox environment in which third-party applications can run. By providing this, it is made possible for external developers to come up with new ideas based on your service. Some good examples on this are Spotify Apps, Apps on Facebook and SalesForce.com.

Ipendo Systems AB is a company that develops a web platform for intellectual properties. Currently most things on this platform are developed by developers at Ipendo Systems AB. Some interest has though risen to enable external developers to create applications that will in some way run inside the main platform.

In this thesis an analysis of already existing solutions has been done. These solutions were Spotify Apps and Apps on Facebook. The two have different approaches on how to enable third-party applications to run inside their own service. Facebook’s solution builds mainly on iframe embedded web pages where data access is provided through a web API. Spotify on the other hand hosts the third-party applications themselves but the applications may only consist of HTML5, CSS3 and JavaScript.

In addition to the analysis a prototype was developed. The purpose of the prototype was to show possible ways to enable third-party applications to run inside your own service. Two solutions showing this were developed. The first one was based on Facebook’s approach with iframing of external web pages. The second was a slightly modified version of Spotify’s solution with only client-side code hosted by the main application. To safely embed the client side code in the main application a sandboxing tool for JavaScript called Caja was used.

Of the two versions implemented in the prototype was the Iframe solution considered more ready to be utilized in a production environment than Caja. Caja could be seen as an interesting technique for the future but might not be ready to use today. The reason behind this conclusion was that Caja decreased the performance of the written JavaScript as well as adding complexity while developing the third-party applications.

"Northern Lights in Logistics & Supply Chain Management" portrays the past, present and future research of the subject in the Nordic countries. The NOFOMA conference - a network of Nordic researchers within the field of Logistics and Supply Chain Management - has been a focal point in the contribution to the continuous improvement and further development of Nordic research. The network has also opened up for interaction with fellow researchers from other countries. There are sixteen chapters in the book that in its own way colours the Nordic rainbow of research within Logistics and Supply Chain Management. The chapters are structured in four themes: 1) Origins and strategic aspects; 2) Research approaches in the Nordic countries; 3) Advancement of distribution strategies and; 4) Emerging application areas of logistics and SCM. The chapters provide an understanding and, perhaps more importantly, consciousness for scholars that are part of this research environment: Where are we now, what have we been influenced by, and in what area are we able to provide positive impact? The aim of the book is also to contribute to increased visibility to fellow international scholars within Logistics and Supply Chain Management.

To stay ahead in an increasingly competitive business environment, organizations need agile supply chain systems that are holistically designed and managed. The experiences of SKF, a Swedish multinational firm, point to the benefits of reengineering upstream capabilities to create value downstream. To foster the flexibility, responsiveness, and other dynamic capabilities needed to manage increased supply chain complexity, the company established programs to involve its suppliers in the value creation process, making them an extension of the organization’s resource base. The overall objective has been to migrate from a business model based on economies of scale in operations to one that exploits both economies of scope and economies of integration. As a result of its efforts to create a more agile and cost-efficient supply chain, the company has been able to decrease supply risks while improving its value creation process and responsiveness to new customer demands and advancing its sustainability and social responsibility initiatives.

Organizations are increasingly outsourcing business critical activities, which increases the risk of substantial negative impact on the financial and strategic business performance. The aim of this paper is to show how outsourcer and supplier seek to mitigate the risks during the negotiations and the ongoing operations of the outsourced activities. The conclusion is that risk mitigating dimensions are directional and operates at different organizational levels, and secondly, that the dimension operates sequentially as a means to mitigate performance and relational risks. It is also concluded that goodwill trust and a cooperative stance have substantial impact on the success of the outsourcing.

Over the past two decades the phenomenon of outsourcing of resources and activities has emerged as an important trend in a wide range of organizations and many companies are today outsourcing complex and business critical resources and activities. This increase in business criticality also increases the risk of substantial and negative impact on the financial and strategic performance. The proposition is that business critical outsourcing is approached with a joint risk perspective and that an understanding of the decision process is essential for success. Further, it is important to view outsourcing as an ongoing process with a number of key stages.

This article explores the role of logistics and supply chain management (SCM) in retailers’ corporate strategy and is based on reviewing multiple qualitative case studies of companies in the Swedish food retail sector. The article proposes that the role of logistics for what is referred to in this paper as modern retailers is twofold: to create profitability and to support growth and market expansion. International modern retailers are empirically compared with similar companies in the Swedish market. The dominating Swedish food retailers have taken command in the food supply chain but are primarily concerned with traditional logistics roles in cost cutting. This role is perfectly fine as long as the strategic intent of the companies is focused on market retention and not on geographical expansion and/or new marketing or store concepts. We argue that the success of modern retailers in terms of growth rate, profitability, and market expansion is explained to a large extent by the role of logistics in corporate strategy—when the role for supporting growth and increasing customer value from high-performance supply capabilities is a driver for market expansion. However, in many of our cases the traditional logistics roles of cutting costs and lead-times is still the dominating pattern that limits the possibility of expanding into new markets. Better knowledge of logistics’ role in retail corporate strategy can help companies develop and improve their strategic intent as well as redefine the role of logistics.

This book aims to provide an illustration of the diversity that characterises contemporary Nordic research in the field of retail. The book draws on a large variety of methods, describes a variety of retail sectors and covers a large number of retail phenomena. The book is suitable for researchers, graduate students and professionals who want to learn more about contemporary retailing research

In this thesis the relationship between Gröbner bases and algebraic coding theory is investigated, and especially applications towards linear codes, with Reed-Müller codes as an illustrative example. We prove that each linear code can be described as a binomial ideal of a polynomial ring, and that a systematic encoding algorithm for such codes is given by the remainder of the information word computed with respect to the reduced Gröbner basis. Finally we show how to apply the representation of a code by its corresponding polynomial ring ideal to construct a class of codes containing the so called primitive Reed-Müller codes, with a few examples of this result.

In this thesis a known heuristic for decreasing a node's centrality scores while maintaining influence, called ROAM, is compared to a modified version specifically designed to decrease eigenvector centrality. The performances of these heuristics are also tested against the Shapley values of a cooperative game played over the considered network, where the game is such that influential nodes receive higher Shapley values. The modified heuristic performed at least as good as the original ROAM, and in some instances even better (especially when the terrorist network behind the World Trade Center attacks was considered). Both heuristics increased the influence score for a given targeted node when applied consecutively on the WTC network, and consequently the Shapley values increased as well. Therefore the Shapley value of the game considered in this thesis seems to be well suited for discovering individuals that are assumed to actively trying to evade social network analysis.

This report handles the preliminary design of a control system that includes both attitude control and boost control functionality for sounding rockets. This is done to reduce the weight and volume for the control system.

A sounding rocket is a small rocket compared to a satellite launcher. It is used to launch payloads into suborbital trajectories. The payload consists of scientific experiments, for example micro-gravity experiments and astronomic observations. The boost guidance system controls the sounding rocket during the launch phase. This is done to minimize the impact dispersion. The attitude control system controls the payload during the experiment phase.

The system that is developed in this report is based on the DS19 boost guidance system from Saab Ericsson Space AB. The new system is designed by extending DS19 with software and hardware. The new system is therefore named DS19+. Hardware wise a study of the mechanical and electrical interfaces and also of the system budgets for gas, mass and power for the system are done to determine the feasibility for the combined system.

Further a preliminary design of the control software is done. The design has been implemented as pseudo code in MATLAB for testing and simulations. A simulation model for the sounding rocket andits surroundings during the experiment phase has also been designed and implemented in MATLAB. The tests and simulations that have been performed show that the code is suitable for implementation in the real system.

We address the problem of removing specular ground surface reflections and leakage/cross-talk from downward looking stepped frequency ground-penetrating radar (GPR) data. A new model for the ground-bounce and the leakage/cross-talk is introduced. An algorithm that jointly estimates these effects from collected data is presented. The algorithm has the sound foundation of a nonlinear least squares (LS) fit to the presented model. The minimization is performed in a cyclic manner where one step is a linear LS minimization and the other step is a non-linear LS minimization where the optimum can efficiently be found using, e.g., the chirp-transform algorithm. The results after applying the algorithm to measured GPR data, collected at a US army test range, are also shown

Creating native mobile application on multiple platforms generate a lot of duplicate code. This thesis has evaluated if the code quality attribute modifiability improves when migrating to React Native. One Android and one iOS codebase existed for an application and a third codebase was developed with React Native. The measurements of the codebases were based on the SQMMA-model. The metrics for the model were collected with static analyzers created specifically for this project. The results created consists of graphs that show the modifiability for some specific components over time and graphs that show the stability of the platforms. These graphs show that when measuring code metrics on applications over time it is better to do this on a large codebase that has been developed for some time. When calculating a modifiability value the sum of the metrics and the average value of the metrics between files should be used and it is shown that the React Native platform seems to be more stable than native.

Associations between heterozygosity and fitness traits have typically been investigated in populations characterized by low levels of inbreeding. We investigated the associations between standardized multilocus heterozygosity (stMLH) in mother trees (obtained from12 nuclear microsatellite markers) and five fitness traits measured in progenies from an inbred Scots pine population. The traits studied were proportion of sound seed, mean seed weight, germination rate, mean family height of one-year old seedlings under greenhouse conditions (GH) and mean family height of three-year old seedlings under field conditions (FH). The relatively high average inbreeding coefficient (F) in the population under study corresponds to a mixture of trees with different levels of co-ancestry, potentially resulting from a recent bottleneck. We used both frequentist and Bayesian methods of polynomial regression to investigate the presence of linear and non-linear relations between stMLH and each of the fitness traits. No significant associations were found for any of the traits except for GH, which displayed negative linear effect with stMLH. Negative HFC for GH could potentially be explained by the effect of heterosis caused by mating of two inbred mother trees (Lippman and Zamir 2006), or outbreeding depression at the most heterozygote trees and its negative impact on the fitness of the progeny, while their simultaneous action is also possible (Lynch. 1991). However,since this effect wasn’t detected for FH, we cannot either rule out that the greenhouse conditions introduce artificial effects that disappear under more realistic field conditions.

The increasing data rates in digital television networks increase the demands on data capacity of the current transmission channels. Through new standards, the capacity of exisiting channels is increased with new methods of error correction coding and modulation.

This thesis presents the design and implementation of a modulator for transmission of digital terrestrial television according to the Chinese DTMB standard.

The system is written in VHDL and is intended for implementation on an FPGA.